Machine-translated by Google. Questions are authored in English.
Top

Discussion

True or false: a base-isolated building needs no lateral load resisting system above the isolation plane.

  • A.True, since the isolation plane carries the whole of the lateral force itself
  • B.True, provided the isolated period exceeds three seconds in both directions
  • C.False, but only for buildings of more than about ten storeys in height
  • D.False, since the superstructure must still carry the reduced force

Answer: D

The reduced force still has to travel from every floor down to the bearings, so frames or walls are needed as usual. What changes is the magnitude of that force and the expectation that the members stay elastic while carrying it.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.